Bump buluma/dependabot-auto-merge-action from 2.1.2 to 2.1.4

Bumps [buluma/dependabot-auto-merge-action](https://github.com/buluma/dependabot-auto-merge-action) from 2.1.2 to 2.1.4.
- [Release notes](https://github.com/buluma/dependabot-auto-merge-action/releases)
- [Commits](buluma/dependabot-auto-merge-action@v2.1.2...v2.1.4)

---
updated-dependencies:
- dependency-name: buluma/dependabot-auto-merge-action
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/depandabot_merge.yml

@@ -24,4 +24,4 @@ jobs:
     steps:
       - uses: "actions/checkout@master"
       - name: Dependabot Auto Merge Action
-        uses: buluma/[email protected].2
+        uses: buluma/[email protected].4